Powder storing and metering device and integrated self-compacting concrete stirring equipment

Abstract

The invention provides a powder storing and metering device and integrated self-compacting concrete stirring equipment, and relates to the technical field of concrete equipment. The powder storing and metering device comprises a stock bin for storing powder, a metering assembly, a conveying hose and a powder conveying mechanism; the metering assembly comprises a metering cylinder, a first electric control valve, a second electric control valve and a sensor. When the metering cylinder is used for feeding, the powder conveying mechanism is started, the first electric control valve is opened to enable the conveying hose to be communicated with a metering channel, the second electric control valve closes a discharging port, and the powder conveying mechanism conveys materials in the stock bin into the metering channel; when the metering cylinder discharges the materials, the powder conveying mechanism stops running, the first electric control valve is closed, and the second electric control valve is opened, so that the materials in the metering channel are completely discharged from the discharging port. According to the technical scheme, the metering cylinder can be arranged to be in a long cylinder shape, space arrangement is easy, influence on other parts is small, and space utilization of the whole equipment is facilitated.

Description

technical field [0001] The application relates to the technical field of concrete equipment, in particular to a powder storage and metering device and an integrated self-compacting concrete mixing equipment. Background technique [0002] Self-compacting concrete refers to the concrete that can flow and compact under the action of its own gravity, and can completely fill the formwork even if there are dense steel bars, and at the same time obtain good homogeneity, and does not require additional vibration. Self-compacting concrete is widely used in tunnel construction. The raw materials for making self-compacting concrete include admixtures, cementitious materials and coarse and fine aggregates, and may specifically include the following materials: stones, sand, cement, coal ash, liquid admixtures, and solid admixtures. Among them, stone is coarse aggregate; sand is fine aggregate; cement and coal ash are powder. [0003] Chinese patent 201810105836.6 discloses a finished p...

AI Technical Summary

Problems solved by technology

In this type of integrated self-compacting concrete mixing equipment, the powder in the material box is transported to the weighing box for weighing measurement. The material box and weighing box often need to occupy a lot of space, which is not conducive to miniaturization, and the tunnel space is limited. The requirements for the dimensions of construction equipment are relatively high, so the dimensions of ordinary self-compacting concrete mixing equipment are difficult to meet the requirements of tunnel construction

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